Common Mime (Papilio clytia form dissimilis) in Tura, Meghalaya, India. I tried to get as close as possible to this butterfly basking in the sun before it took off.

Nikon D800 (in DX mode) & Nikon AF-S Nikkor 80-400mm F4.5-5.6G ED VR
400.0 mm (in 35mm: 600.0 mm); 1/640 sec; f/5.6; ISO 500

Adjustments in Camera Raw (Exposure +1.00) and in CS6 (Curves and Levels). Slightly cropped.